Machine for cleaning filter-beds.



PATENTED DEC. 10, 1907.

H. W. BLAISDBLL. MACHINE FOR CLEANING FILTER BEDS.

APPLIOATION FILED APR. 6, 1904.

3 SHEETS-SHEILTI.

W ATT ,HNEY

PATBNTED DEG H. W. BLAISDELL. MACHINE FOR CLEANING FILTER BEDS.

APPLICATION FILED APR. 6, 1904.

SSHEETS-SHEBTZ/ WITNESSES A 7'TOHNEY PATENTED DEC. 10,

H. W. BLAISDELL.

MACHINE FOR CLEANING FILTER BEDS.

APPLIOATION FILED APR. 6, 1B04.

s SHEETS-SHEET s.

flTZ/ZNE Y a citizen of the United States, residing at I form of theinvention; Fig 2 is an end eleva .moved thereover.

Ar ana FFICE,

HIRAM W.. BLAISDELL, OF LOS ANGELES, CALIFORNIA.

MACHINE FOR CLEANING FILTER-BEDS.

No. 873,0 1 O. Specification of Letters Patent. Patented Dec. 10, 1907.

Application filed April 6. 1904. Serial No. 201.933.

T 0 all whom it may concern: Be it known that I, HIRAM W. BLAISDELL,

Los Angeles, in the county of Los Angeles and State of California, haveinvented certain new and useful Improvements in Machines for Cleaning,FiltenBeds; and I do hereby declare the following to be 'a full; clear,and exact description of the invention, such as will enable othersskilled in the art to j which it appertains to. make and use the same.

This invention relates to means for cleaning material and particularlyto machines for cleaning filter beds; and some of the objects of theinvention are to provide a simple cheap and efficient machine of thischaracter.

Another object of theinvention is to provide means for operating uponthe surface of filter beds so constructed as to automatically follow theins ualities or unevenness in the surface of the lter-bed.

It is also an object of this invention to provide means for operatingupon the entire width of the filter bed at one time or to providecleaning means extending entirely across the filter bed, and constructedto be With these, and other, objects in view the invention consistsessentially in the construction, combination and arrangement of partssubstantially as more fully describedin the following specification andillustrated in the accompanying drawings, forming part of thisapplication, in which Figure l is a front elevational view of one tionalView of the same; g; 3 is a top lan view, thereof, partly broken away;and l igs. 4 and 5 are enlarged detail views of one form of shoeemployed.

Similar characters of reference designate corresponding parts throughoutthe several views.

Referring to the drawings, and particularly to the constructionillustrated in Figs. 1, 2 and 3 thereof, the reference character 1designates a portion of the walls of one or more filter beds, which maybe arranged in any desired manner and may be of any preferred size andformation.

On the walls 1 are secured trackrails or ways 2, whereon travel thesupporting wheels hop er \by the 3, of atraveling structure or bridge 4,and a propelling shaft 5 is formed on, or connected with, one set ofsaid wheels, and preferably carries fast and loose pulleys 8 and 9respectively connected by a twist belt 10, with a pulley 11, on a clutchshaft 12, carrying a fast pulley 13 attached by a belt 15, withthedriven pulley 16, of a centrifugal or other pump 17, substantiallyasshown.

The pump 17 is preferably provided with a discharge pipe 18, adapted toempty into the or receiver 19, the-material elevated ump, assubsequently explained, and an out et pipe 20 is preferably connectedwith the receiver 19, so as to discharge the Y liquid therefrom into agutter or conduit 21, formed in or upon the wall 1, essentially asshown. i

An endless elevator 22 is desirably mounted in the receiver 19 to removetherefrom the solid matter conveyed therein by the action of the pumpand the elevator is desirably driven through the mediation of gearing23, a band wheel 24, belt 25 and pulley 26 on the drive shaft of a motoror engine 27, Figs. 1 and 3. I p

A motor or engine .28 is connected with a band wheel 29 on the clutchshaft 12, which carries a fast pulley 30, connected by a straight andtwist belt 32 and- 33 respectively, with loose pulleys 34 and 35, on theprgelling shaft 5, before mentioned.

y means of the construction just describedv the bridge ma be progressedin a forward or backward irection according to whether the straight belt32 or twist belt 33 is on the fast pulley 14 on the propellim shaft5 ofthe bridge.

The band wheel 29 is preferably mounted on. an intermediate section 36of the clutch shaft 12, and is desirably connected alternately with oneor other end of said shaft by means of clutches 37, one whereof connectsthe intermediate driving section 36 with the left hand end of the clutchshaft, carrying the pulley 30 and beltedv to pulleys 34 and 35 on thepropelling shaft; whereby the bridge is alternately progressed rapidlyin either direction.

When the other clutch is thrown into engagement, the right hand end ofthe clutch shaft is driven, thereby actuating the pulley 11, thereon,which is belted to a fast pulley 9 on the pro )elling shaft 5, toprogress the bridge at a s ow rate; and the rotation of this end of theclutch shaft operates the fast pul ley 14 thereon, belted to the pulley16'on the shaft of a centrifugal pump 17, as before explained. g

Channel irons or guides 38 are preferably vertically in or adjacent tothebridge 4 and movably mounted therein are frames or hanger members 39,connected with a pipe or device 41, with which communicates a pipe tube42, connected with the pump 17, substantially as shown.

Formed on, or connected with, elevating 4, whereby the material entersthe section,

passes therethrough and out by way of a flexible connection with thepipe 41; and material and fluid alsoenters' the sections 44 through theopenings or inlets 51, in the upper portion thereof, Fi s. '3, 4 and 5.

T e operation of t e invention will be readily understood from theforegoin description when taken in connection'wit' the accompanyingdrawings and the following explanation thereof.

The motor 28 is started, thereby imparting motion. to the intermediatedrivin section 36 of the clutch shaft 12, and the eft hand clutch beingin engagement, the twist belt 33 is operated to actuate the pro ellingshaft 5 and progress the bridge in a or'ward direction u'ntll theapparatus shall have reached the lace of o eration, whereupon the lefthan clutch is't own out of engagement and the right hand clutch isthrown into engagement, thereby actuating the belt 15 connected with thecentrifugal ump, and, at the same time, operating'the elt 10 to progressthe traveling structure automatically during the operation of theapparatus.

The pump being ut in operation, and the traveling structure eingautomatically and slowly progressed, the cleaning device is caused totravel over the bottom of the filter bed,- and conform with theinequalities or undulations thereof by the play between the parts, andthe deposit or crust on the filter ed is removed therefrom by the actionof the sections 44, into which the forei n matter and fluid is taken,and from which-t e same is removed through the flexible connection 50,horizontal pipe41 and the vertical pi e 42 to the centrifugal pum ,fromwhence t e same is discharged throng the pi e 18 into the receiver 19,provided with a ischarge pi e 20 for the liquid and theelevator 22 todisc arge the solid material from .the receiver, substantially'asillustrated in Fig. 1 of the drawmgs.

. By reason of the construction of meansfor elevating and dischargin thematerial, the

entire surface or width 0 a filter bed can be treated in one-operationand the construction of the cleaning device in sections per-f melts thedevices to more readily conform to v the me ualitles or unevenness 1nthe surface of the lter bed, while the movable connection of eachsection affordsa limited independent motion, and the upwardly deflectedextremity of each section acts as agage for regulating the o eration ofthe section.

After a filtered shall have been cleaned,

and it is desired to move the'traveling structure from one filter bed tothe other, it is only necessary to operate the elevating shaft 52,carrying pinions 53 engaging racks 54 on the frames 39, until thecleaning devices shall I have been elevated a sufficient distance toclear the walls of the filter-bed, as will be readily understood bythose skilled in the art to which this invention appertains.

It is not desired to limit or confine this invention to the specificconstruction, combination and arrangement of parts herein shown anddescribed, and the right isreserved to make all such changes in, andmodifications of, the same, as come' Within the spirit and scope of theinvention.

Claims 1. A machine for cleaning filter beds comprising a supportadapted to travel lengthwise the filter bed, suction means for elevatingand discharging material, a series of independently operating scrapersarranged end to end entirely across the filter and ada ted to scrapematerial from the surface of the filter bed in the direction of travelof the support and a connection between said scraper means and saidelevating and discharging means.

2. A machine for cleaning filter beds comprisinga support adapted totravel lengthwise the filter bed, suction means for elevating anddischarging material, a series of independently operating scra ersarranged'end to end entirely across the ter and ada ted to scrapematerialfrom the surface 0 the filter bed in the direction of travel ofthe support, a connection between said scraper means and said elevatingand discharging means and means for raising said scraper means andconnection.

3. A machine for cleaning filter beds comprising a support adapted totravel length- 1 Wise the filter bed, suction means for elevating anddischarging material, a series of independently operating scrapersarranged end to end entirely across the filter and adapted to scrapematerial from the surface of the filter bed in the direction of travelof the support and a connection between said scraper means and saidelevating and discharging means, sald connectlon comprismg ahorizontally extending pipe into which each of the scraper means isadapted to discharge.

4. A machine for cleaning filter beds comprisin a support adapted totravel lengthwise the filter bed, suction means for elevating anddischarging material, guides on said support, frames movable verticallyin said gu1 es, a series of independently operating pivotally supportedscrapers supported from said frames and arranged end to end entirelyacross the filter and adapted to scrape material from the surface of thefilter bed in the 15 direction of travel of the support and connectionson said frame affording communication between said scraper means andsaid elevating and discharging means.

In testimony whereof, I have signed my 20 name to this specification,in'the presence of two subscribing Witnesses at Los Angeles, county ofLos Angeles, State of California this 30th day of March 1904. s

HIRAM W. BLAISDELL. Witnesses:

MIGNON FORD, CHARLES S. ROGERS.

